Conveyer system



Apr. 24 1923,.

H. J. -HOYT CONVEYER SYSTEM Filed Aug. B, 1917 3 Sheets-Sheet l om om -his Afb! H Inventor: ouerlbyl,

Apr. 24, 1923.

1,452,836 H I non CNVEYHF SYJFEM Fled Aun, i, 1917 Attest: Inventor: $@4w5f bis' Atty 3 Sheets5heet f Apr. 24, 1923,

H. J. HOYT CONVEYER SYSTEM Filed Aug. B, 1917 5 Sheets-$heet Patented Apr. 24, i923.

UNITED STATES PATENT OFFICE.

HOHER J. HOYT, 0F DETROIT. MICHIGAN, ,asszrinon To MORGAN a; WRIGHT, A commlmfrmn or MiCHmAN.

CONVEYER SYSTEM.

Appication led August T o al( whom t muy rai/,cern

Be it known that I. Homan J. ilwrr, .i citizen of the United Stntvs, rusidiiig;r :it lh'- troit, county of Wayne. und Stati. ol' Nichigan, have invented eertain new und nhenl Improvements in (hnvejuer Systems. nl'

which the followingr is a full, rlear. und uxart description.

This invention relates to an apparatus los' systematizin, r and facilitating: the nianipn lation of molds ineillen to Curing iniheigoods: in general. In the vliz-ing ol' tiren, a particular example of .-nri ruiihil' the weight of the molds` :1nd rires is such that operativiB4 zo nini! the manipulation ni.. tmnngiori i. if ifA the press room. lSo rliretniie liiov nii-'Jr has been taken np lo' the vid n|eli=,=l` Systems employed in the prese iwf' ther, the work of the oinvrntivu general rather than fiperifiiized. :vitn .i re sultzlnt slowing down in pnninrlion im' nnin elnpluyed. A`till further. the londir of the presses has heen nim-e or in iilii The present invention zinns to provi im inmznatus insuring syetiiniiitir handling ot' the In `ilds,'reducingr immuni lahm' materially expeditimgr the refilling of the molde and their' loading into th(I vlilczinizcer, dimiening: the interval between tin` dieeimrffe nl the molds from. und their reclizlrggfe into. wimmiyers.` and enablingr the unex-ulm' e lo heroin@ expert in special operziionsfnlimited to hlni. Generally, it aims to eronomixi, in lsilioia 00st ,of prolluction .il nd ffirorfc simo-fn ii'itiil further, it alims to provi i?. `Uhlefrm for trampoi't.ilig 1rtin moin-f to and .from In vnlrnniicers :it :i raie mi -prm ihfii :wi Controlled :ind perlnitiing'.`-i ii'=r:ii=ljr not nlcesearily. the rnolfl-` to hr: lvnlpfnnriiy halted whilel emptied nur! retiiiw-ii.

With the illustrated enihfidinn'nl nl lia" invention in mind and wirifmt inteni-rn'i iw'.- nnnecessarily limit its swipe., ihfinvention ma)7 he said to consist in :i ronveYer erwten; having a ronor rows of vnl animi-s fhiniiml on opposite sides h v simply and diL imrge Conveyor flights or runs for deliveringr molds loaded with nncnrefl articles to the, premies and for Carrying' away the innlds Pontuining the articles after they have heen oni-ed, tho said supply und discharge vonvevvr flights being operatively ronnerlrfl np h v :i von veyingg run or any interronnettin .ur nieuw-i of transport for circulating the molds in a prehill Serial No. 185,027.

iiherl path permitting access to them for vniingving inni reliiiing Gpcratifins. More iwiff'li :ind iinlrtirnlarlv described, the preffiuwl ronn'irnctioii embodies n shunt arrimgrinent nl' a plurality of vuicanizers lietvfien parallel lapping rnns nl' 1 convcyer llizit ie: iiniistaintiallv vontinuous.

in the drawingsi i Fig. l i5 plain View, ilinstrsiting im im hodinwn. of he invention: i

if; unl :ire detail riens. illusraitii'igg f oi ronx'ever; and i) :ire detail views. iinitrzzt er ii'iie m" eonmyer,1 'i is it diagriniznnlii'. View Showing in ndiiidlml mintrol of n 'motor from the 'i 'Divin-h hoard. .swing in the drawings. Ui indicates nl! iii-reenviar vnlrzinizin-f ruliizrr ai!- lint n i .nf @ne or vinnilwi" or these prong-es muy he mi iwi un desirolh and their arrange)- nn mi um): .modified to snit renditions; mr-

fnnnwimi in ill-:irtii-e. 'lho usual French i For wiring tires is illustrated Conrtn "fr und n. .nm-her of thm-e are i'iovvn d in n ilmis'hlz row. inil. olivi,

mixen muy? hr 'sarionnl yd ii iin: :lwlilfiiiie nil glietliniin. Whiiri forni of n,

" iii, i4. ifi. lli. l? mi? llit f molde iff from the milest- 1 :intl izmir in; :nation 2O to am' desiired im@ 10. and to return them to lsmid Star tion :liter tinl viiirfinizinf" froresig has been wrniiiiinril. liiih m the conveyers is driven im un individual riwtrif' motor 2l. inde gwndentlf: rontimlied from fi ventral station 2:2. ihk` sirrangemenl einihlns the operator ti: rr-fgnhzte the firm and rate 0f travel of .my of the, refiwttive ronfeyers as desired, therein governing.r the time and rale of delivery of the molds to the presses and their retin-n to the station 20.

An additional means is, also provided for regulating 4in? time und rate olE retnrn of the moldsy to lh.` .station 20. Although ca milde of various .oiictrln-tions this is shown in he form of stop-bars. 23 one of which is vries: of emilie-SS arranged at the end of each of the conveyers 17 and 18. These bars are adapted to be let down into suitable brackets 24 attached to the conveyer frame 25, and when in posi tion extend transversely across the conveyers. By this means the molds which normally leave the presses spaced apart may be accumulated so as to lie edge to edge for dclivering to the station, thereby effecting a substantial economy in space and greatly facilitating the loading and unloading operations.

The conveyers 17 and 18 on which the stop-bars are used are provided with roller treads to adapt them to rotate freely when the molds are blocked thereon. As shown in Figs. 5 and 6 this type of conveyer comprises a series of rollers 26 mounted to revolve freely on axles 27 of the flanged wheels 28 adapted to run on the track 29 carried by the frame 25. Adjacent rollers are connected together by means of suitable links 30. Sprocket wheels 31 mounted on shafts 32, driven by motors 21 serve to drive the conveyers. An important advantage of this type of conveyor lies in the fact that it is not necessary for the operator to shut ofi' the power when the molds are blocked thereon as the rollers 26 are free to turn in a reverse direction to that of their axles. Conveyer 11 is also made of the roller type to facilitate the transfer of the molds at varying rates of speed and n stop-bar 23 may be located at the delivery end of conveyer 11 when desired.

The conveyers 12 to 16 inclusive, are comprised of a series of-U-sha ed carriages 33, each carriage beingy rovi ed on its underside with bearin books 3Q formed to receive axles 35 of t e flanged wheels 28 adapted to run on the tracks 29. Adjacent carriages are connected together by means of suitable links 36. The driving mechanism shown in Fig. 3 is employed for both types of conveyers.

When it is desired to fill a press, a shuntbar 37 is set in place in brackets 38 arranged on opposite sides of the conveyor frame at a point ad'acent the press. This bar extends diagonal across the movable platform and serves to deflect the molds from the platform to the runwa 39, down which they slide by help of the fbrce of gravity into the press. The runwa is portable and is provided with suitable ro 1ers 40. It is secured in place in the brackets 41 carried by the conveyer frame.

Located on the delivery is a friction winch 42 shaft 43 driven from a source of power, not shown. The shaft is sup orted in bearings 44 attached to the suspendld platform frame 45. When it is desired to remove the molds from the press, a ro 46 having a hook 47 ot one end is woun around the winch 42.

side of each press lT he first lead wire source of supply through the ri'ght hand coilV mounted'on the line The hook is then secured to the mold and the operator by exerting a pull on the free end of the rope, causes lthe mold to be quickly transferred tothe return convcyer 15.

Curved guide rails 48 attached to the frame 25 are provided for guiding the molds on and off the conveyers 13 and 16. A guide rail 49 attached to the frame 25, serves to prevent the molds from sliding ofi' the return conveyer 15.

The conveyers 11, 15, 16, 17 and 18 are arranged at a suliiciently low level to facilitate loading and unloading the molds while the conveyers 13 and 14 are arranged at a higher level to provide a gravity feed for the molds down the runway 39 to the presses. The conveyer 12 is arranged with a rise leading from the level of the lower conveyers to that of the upper. y

Chain hoists 50 are provided for loading and unloading the molds, these being illustrated conventionally in Fig. 1'* and shown Vsupported overhead from I-beams 501 movable bodily sidewise by means of rollers 502 which track on rails 503 suspended from the ceiling and extending lengthwise above the conveyer sections, as clearly shown in the drawings, in order to permit, when desired,l replacing the cover sectionl on the bottom section of the mold without halting movement of the latter. But, obviously, any suitable means may be employed above the conveyer for lifting the cover sections of the molds and replacing them on the lower sections whether the latter be moved continuously or halted temporarily, as, for instance,

when a stopbar 23 is interposed in their.

path of travel whileiresting on the conveyer sections 17, 18 and 11, respectively.

Space-bridging rollers 51 are introduced between the conveyer 16 and each of the adjacent conveyers 15 and 17, and between the conveyers 13 and the adjacent conveyers 12 and 14. Each of these rollers is mounted on an axle 52 secured in suitable bearings attached to the frame 25, and is driven from the motor 21 by means of chain drive 53.

In Fig. 7 a diagrammatic view is shown of a suitable system for independently con` trolling each motor from a central switch board. An alternating current motor is used, and is controlled in the following manner: 54 runs direct from the of the overload relay and thence to the motor 21 at 55. The second wire 56 leads through the switch contact points 57 and 58, the wire 59, the lefthand coil of the overload relay and to the motor at 60. The third wire 61 leads through the switch contact points 62 and 63 and the wire 64 to the motor at 65. The switch contact points are normally open, and to close them and Start the motor the push button 66 is momentarily pressed down. Thereupon current passes the wn i, 5H zmli .uw :arrosto thi* vwd-wt points (h thvrvbji stu ig tho mo- :fn o? this, switih i frloses: the l ami El; and upon irl-limbo of the starting; button titi this current for the Sol@ mold 3 will then pass from the!` twitch contat-t if through the wire T9, writch contacts Si? und Sli7 and Wirt i442 to thv` rontnct 39 :mtl than@ to the Wire 53 :is before. The owroad raiagv operates iii ordinary manner to break they circ'oi through the solenoid T5 at 7'," when an winload occurs, lows th Switch to when thereby tho mirent thro: i tho motor. The sspeiiiii mimmo' in VM onwil motor if; ineloponiitntly mnirolliii ovnis no part 'uwiltion sind auf; oliil nuiiiblemech- `E mold?` lfr u whs-nw l`^lil-1`i im i; shnntfimr tioini onto We nodali' ilH into lilo pi, i lil. The oporntrzl in the umili znsiniwr olivi' it sind when filled is vlot-"oid und tho vulifimiing pioiois :ippliril il. ttor vulwin` izifitioo hun bos-o imwnnpi bwl ibo niolilh` sito rinnovi-,ti from tho presi: to i ha riflurn mit vs *w ifi hy mmm: of thiwilli-li From tht! venin-lumi' if; iiifji' pnns- :iri'mul thv plutalbo :ii/'ellis ori :non unloadrdE for iistonr in ih of tho manufact tiros the) mold hall with the- Li im jwith thitire? vulcanized is misled "l molli@ wifi i bzw thy i 251mm) In mi in A along tbv movable pliitfot ibn? i trolling the operation of section 1l. But, il" dvsirod. the;i molds may be movd continuousij and thuir rovir si-wtions lifted and replof-sld 'viithont stopping tlm movement of their lou'tr zsmtiionbp. the overhead Shiftable hoists permittingl this to bi1 done while the'l cured tires are wmovvd ond unrured tires positioned in thtl lower mold set-tions which may ho resting on :my one of the conveyer sections benont h tht` shiftiible hoists 50.

'hen used in Coiljumtion with the welllmown French press type of vulrnnizer having u fixed (or relativolv iixed) head and .1 lower hydraulically movable platen. the` lzittor may br dropped tfoiitimiously nml at a roto permitting: the moldto be shuntetl mit tresivtly from tht` vonvoypr and Stiltked. Obviously. thi porlnits :i substantially :nlA oniatic loinlintgr of the presses with an atttnilnnt Saving in labor and time.

lt will he motivati from u scrutiny of Fig. l ot' tiltl drawings; that ionvoytr Svrtions 14 und lo :mey arranged :1t opposite sides of sind adjacent the row of :ooh'i-trooting stations l0., und that thosv oonvowr sections vom-tiA tuto supply sind' lisoliow-'iruns for molds Pntiiiiig: oi' loavio illii -tntions or presses lil. Thot-r1 two "or wi' :wvtions or runs 14 :mii l5 boing intl-r www] by set'tions itl. i7. 19. il. lz, o of tbv ronvvyor' vnA nllalv this hilary molds to bo c'il'tlilritfil in a prililhsuiioi-d pmh from nur ont' of tho preuw it: n row ni'ouoii thv s vstim nml bnc-t :fn loto any on@ of thtl viili'nnizing pzeswfa ill in tho row tlimeof. Thus1 ut thtx snnw tinwr` two dili'vrnt prwsvs luny'be i-mptiid :md rviillvd Without :my possibilit)v ot' tbimolds intort'viing with vzifh other. Thereby. the operation nt the mouth of the primo-vs is systomatizvd and the idle period ot' tim presses redur'cd to o minimum for` of oom-so. in practical operation in a factory, tho nystsm is workml out so that :i batth of molds i-ontiiining groten or unvureil tires are i'e-:uly for dolivi'ry into :my one of the prvs-es :it tin inouwnt it in mnptied. 0n the voni'oyoi sii'tions iT, it nml il. tho molds' muy be rvndily emptied o!" their vulianized tiros and refilled with onvoli'anized or green tirol; without uowooriiilr lifting: the lower' (lther advantages of thorv Muti-ni vili bf ,ippnivnt to tbosv Sifiilid iii tlm nrt. l

Wh l Einw siwlvs'ilw/l oml of tho proi'oried niboiinients ot my' invention. it is `olnioim that vonsirhloble modification ond substitution of equivahnt devices or ole ments*` mov bi1 omda, without departing from tho supirit` sind scope oi' they invention :is doiinvd in the appended rlfiims.

Having; thu cllsiribod mj.' invention. what l i-lnim :is new ond cli-.Qiri to protect by Lotters Potvnt is:

l. ln :i system of the ilfiss desoribied` a row of mold treating stations, anda, mold 'envoyer having spaced rune err-annui ad jin-vm the roeY oi' stations. :und :i third rml connecting the spaced rum whereby segur rate Statione may be emlltniwmely cbm-ged with or discharged of :1 pluruliy ol' molde independently :and ntiwd inlcrfervmwa E. in :i erstem oi' No in liwi'rilwl :i rmi' or mld tunning .-i plmulit) -c-l sf'etioml nitridel` u i M-iiwjvw lowing: spliced rune nrriuigeei :it omicidio .eide-s ol tile row oi stetione. :e rmi 'emllusow1 nia tllr spared rune j menne im' wpzmitin-kf und rennitint mi de on tin; inet alwmionwl rml duringlr treutnwnt of' lili' other mold`Y- ai the stations whereby :my ieion :my In Supplied quickly after bring emptied,

Il. In a System oi" @fw described adapted to linudie tire wiring; umide lowing Lipper :md lower' sertie-nw. :i ron' of' curing; stations, and a. ronwim :munged :thread of and adjacent to the mw of stallone' im' transport of moldv to :1nd from any one ol' them. Said conveyor inning n vominlwb m temible portion or run for permitting llw moitie to be 'treated .md n=-ii;1i''e\l milioni zaeweeerily iifting iin-ir ibm@ whereby :1 batch of nella wir br miwlii onslj: transported from mi tation in zlw row. emptied, rlennedm -.illefd mul imm.- por'eii to any station in ilul roc. ein in fr "it and any empiff intimi imno firivly re4 3fed.

l. in :l system oi' tlm bld-w dwll'il-ad im' bandlil'ngr tire Curing [ruilde with :xpp-rr und iower sertions, n row of stritioumy druntzere`v and n conveyor arranged to transport molds to and from oppoeitlf Hides of :i row of vuicnnizeln. seid .-omrffer inning :f we tinuous horizontal ncf-eeeillle portion .ey-:mul from the vuleanizers for permitting ille molds to be treated and riicbergwl. und means located above the ucceseiiliv portion for liftiny upper sections from lower .seutions of t e molds whereby tin latter may be emptied, cleaned, end refilled without li fting their lower sections.

5, The combination with a `station. of u continuous renvoyer system for advancing sectional moils. said system haring :1 por tion leading from said station :md :i portion leading t0 Said Station. means for vimini` ing Suid sectional mnde in trnnei. :md means for transferring said molde to will .ste-.tion from said last-mentirmed perion nl' the conveyer system and to snl Sie? wntioned portion of the fonWyi-r system from said station.

6. The combination with n station For n iiurality of Sectional molde. oi' a eontimmue iy movin endless eonvejfer syntem lendingu from an returning to seid etetion. menne for transferring the molds to .Quid station from said system and from said Station to said system and menne fe separating' :md reunitmg the successive nieldm fines lum-r w with :i

mobi inenting menne'. of .fi continuously op zwemmer .eynem loading.; from :md

Sion ilo-inf. :i Serien oi' 5e#- Y,flzipted to be ie'umi'cireel to zalm vrom mid uoliveyer :1t Suid station point, :andI menne unending diront regard to the positioning zal Suid molds on Said eonveyel l'or separating :md remaining the sections tlwiw-i' to :nie-'nit of eli-@tying :ind reiillin 1j. ii, Appui-fain; of.' tin' viarie dvsvribcel, H1-

ng :l ron oi' molli treating; stations, ai indiennne conveyansietvm inning loading f rime mi opposite allies of the :mi of moli Uniting delinea and a loop ille loading and ununldinnI :mi lacing :arrnnged zal :isi .mouille wi the treating "1; fzmei'er of molds to mlm.. will .l

if. www zet :ifnde- 1 ilfwmg Foe-:ding hiding rom on olqmetv sido of the moti? trentini; fdidione. .i third rim famme 'a iilr Mlnr ionding und unloading: unf! lovin. for i ieii-iiig molds from the im oi' tls# mm'ekyer into :my one of in; simiente without interrupting' A `il"lll Ul. il ('UHTFYEF,

ll. tivmr'ullis ot" the vinse desvribed, invinding :i me, of mold treating stations, u c'mxtiimom: vmweyel system havin loading und unloading runer on opposite si es of tbe row of mold treating stations, e third rim mntinuous with the loadinglr and unloading' rune. said loading run being arranged et an elevntion above the months of the treating stations, and means sliiftable lengthwise of die lending run for automatically shooting .timiditin-reiroln to n treating station without interrupting movement of said loading msn.

lL. n uplmratns of the cines described inl-lmlim n Series of mold renting stations.n a plurality of sectional molds. o i-ontinnous conveyor einem adjacent and parallel to will Series, #i eintione. means for transfer" ring filled molds from the conveyor ejlstem to tlw Stations sind from the stations to the Conwyer system, and means for separating and Vomiting tinE sectional molds, whereby the time interva'le between treatments of mold! :it tliletntione may be reduced.

lil. The 'mbnation with a. stationary mollttreetir; means, of a continuously mov- TIB lil() lill said station and through thu respcciw Vnlinclpvnflvntly mnti'ollingr the nim-ement Uf canzers is fflfilintfd. mvans for stopping the nlrilr'lsr at different points in the` run. the mold@ at saifl f-lzltimn :unl rnv-ans for and means (liiepuseil adjacent the run l'ol if- 1 raising:` and lnwm'inLr tlm upper s-vvtinn nf moving poulains of the molds to :illmv ving- 5 Said molds t0 permit I'vmmal of their 1mtying nml l'rlling 0f the portions remain 15 tents. img on flip rnn.

Q3. In an apparntlm nf llw rhzirm'tm (le- Slgnefl :il Detroit. county of VVaynP, and

svx'ilwrl. moans whereby molds muy lw in Stute of Mirhigan. this 6th day of August?, mxlated m nn endless rnn. a vulf'mnzing,1917. i' 1U press lwmg Inclnflml m @nifl run. :uvam .or HGMER J. HOKT 

